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Hi there Rand actually just gave some insight to this in another Q+A thread; I recommend reading it! Hope this helps - good luck!

Thanks @Textmarketing. The result you got is what we've been able to replicate most often by playing around with geo. But, occasionally, they'll get an individual member listing (see my screenshot), which is what they're trying to avoid.

Many sites will have "Modified Since Http Header" enabled. If so, then when looking at a page you want to check, type this into your address bar: javascript:alert(document.lastModified) But that won't work on all sites as some may disallow javascript execution in that manner. But also if it's a dynamic site and the web owner hasn't configured their Modified Since Http Header properly, then you'll get incorrect dates anyway. You can see if a website has the Modified Since Http Header enabled: http://www.hscripts.com/tools/if-modified-since/index.php You can use the internet archive to look at previous versions of a website (unless they've disallowed this in the .htaccess): http://archive.org/index.php A cool tool I use to alert me to when a competitor (or any website) content is updated is: http://www.changedetection.com Enjoy